5663969566 has 16 divisors (see below), whose sum is σ = 8526228480. Its totient is φ = 2821906360.

The previous prime is 5663969539. The next prime is 5663969567. The reversal of 5663969566 is 6659693665.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5663969567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1324011 + ... + 1328281.

It is an arithmetic number, because the mean of its divisors is an integer number (532889280).

Almost surely, 2^5663969566 is an apocalyptic number.

5663969566 is a deficient number, since it is larger than the sum of its proper divisors (2862258914).

5663969566 is a wasteful number, since it uses less digits than its factorization.

5663969566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6479.

The product of its digits is 47239200, while the sum is 61.

The square root of 5663969566 is about 75259.3486950292. The cubic root of 5663969566 is about 1782.5441846963.

The spelling of 5663969566 in words is "five billion, six hundred sixty-three million, nine hundred sixty-nine thousand, five hundred sixty-six".